<meta charset="utf-8">
<title>下拉框</title>
<select>
<script>
         var arr = ["蒙古族","回族","苗族","傣族","傈僳族","藏族","壮族","朝鲜族","高山族","纳西族","布朗族","阿昌族","怒族","鄂温克族","鄂伦春族","赫哲族","门巴族","白族","保安族","布依族","达斡尔族","德昂族","东乡族","侗族","独龙族","俄罗斯族 ","哈尼族","哈萨克族","基诺族","京族","景颇族","柯尔克孜族","拉祜族","黎族","珞巴族","满族","毛南族","仫佬族","普米族","羌族","撒拉族","畲族","水族","塔吉克族","塔塔尔族","土家族","仡佬族","土族","佤族","维吾尔族","乌孜别克族","锡伯族","瑶族","裕固族","彝族","汉族"];
         for(var i=0;i<arr.length;i++){
                  document.write("<option>"+arr[i]+"</option>");
         }
</script>
</select>